To what extent is it ethical for the international community to intervene in the dispute between the Israelis and Palestinians, regarding the Israelis building cities on Palestinian contested land?

To what extent is it ethical for the international community to intervene in the dispute between the Israelis and Palestinians, regarding the Israelis building cities on Palestinian contested land?

Subjects that need to be incorporated: History (context) and Philosophy (plz try to get three Philosophers: one from the Israel side, one for the Palestinian side, and a philosopher with a overall viewpoint of ethics like Aristotle) Then incorporate a self-made viewpoint which is that the international should intervene because they did before when they granted land to the Israelis.